Direct insertion valve device and combustor

Abstract

The utility model provides a direct insertion valve device and a combustor, and relates to the technical field of combustors. The direct insertion valve device comprises an injection pipe and a nozzle, an opening is formed in one end of the injection pipe, the direct insertion valve device further comprises a limiting piece, the limiting piece comprises a limiting body and an extending part, the limiting body is provided with a first nozzle hole and a first air door hole, the opening is covered with the limiting body, and the first air door hole is communicated with the opening. The extending part is arranged on the side edge of the limiting body and extends outwards to form the injection pipe. The nozzle is inserted into the first nozzle hole, a nozzle opening is formed in the end, close to the injection pipe, of the nozzle, the nozzle opening extends into the inner side of the limiting piece in the thickness direction and communicates with the opening, the thickness of the limiting piece is smaller than 2 mm, and compared with an injection pipe integrally formed through a limiting structure, the limiting piece is smaller in thickness and easier to dissipate heat; the injected air repeatedly cools the nozzle in the process of entering the injection pipe from the first air door hole, so that the temperature of the nozzle can be reduced, and the service life of the direct insertion valve is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of burner technology, and in particular to a direct-insertion valve device and a burner. Background Technology

[0002] In the prior art, burners using direct-insertion valves typically have a limiting structure on the ejector tube. The nozzle of the direct-insertion valve is inserted into the limiting structure and is limited by the limiting structure. Since the limiting structure and the ejector tube are usually an integral structure, the thickness of the limiting structure is usually large, resulting in poor heat dissipation. The nozzle is located in a narrow high-temperature zone, which leads to a high temperature, and also makes the valve body temperature high, affecting the service life of the direct-insertion valve. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defect of the high temperature at the connection between the ejector tube and the direct insertion valve in the prior art, which affects the service life of the direct insertion valve, and to provide a direct insertion valve device and burner.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] This utility model provides a direct insertion valve device, which includes an ejector tube and a nozzle. One end of the ejector tube has an opening. The direct insertion valve device also includes a limiting plate, which includes a limiting body and an extension. The limiting body has a first nozzle hole and a first damper hole. The limiting body covers the opening, and the first damper hole is connected to the opening. The extension is located on the side of the limiting body and extends outward from the ejector tube.

[0006] The nozzle is inserted into the first nozzle hole. The nozzle has a nozzle opening at one end near the ejector tube. The nozzle opening extends into the inside of the limiting plate in the thickness direction and is connected to the opening. The thickness of the limiting plate is less than 2 mm.

[0007] In this design, by separating the limiting plate and the ejector tube, the thickness of the limiting plate can be made thinner, less than 2mm. Compared to the integrally formed ejector tube, the thinner limiting plate facilitates heat dissipation. Furthermore, the limiting plate includes extensions located on both sides of the limiting body, extending outwards to form the ejector tube, further enhancing heat dissipation. Because the limiting plate is thinner, the nozzle orifice can more easily extend into the inner side of the limiting plate's thickness direction, ensuring the orifice's periphery is not obstructed. The nozzle orifice is in a semi-open space, further facilitating heat dissipation. During use, the ejected air repeatedly cools the nozzle as it enters the ejector tube from the first damper hole, thereby reducing the nozzle temperature and extending the lifespan of the direct-insertion valve.

[0008] Preferably, there are two extensions, which are located on both sides of the limiting body and below the center of the nozzle.

[0009] In this design, the temperature is lower below the nozzle center, so the extension is located below the nozzle center to facilitate heat dissipation and further improve the heat dissipation effect.

[0010] Preferably, the limiting piece further includes a mounting portion, one end of which is connected to the limiting body, and the other end of which is detachably connected to the ejector tube.

[0011] In this design, the installation part facilitates the installation and removal of the limiting plate and the ejector tube, and also makes the assembly and subsequent maintenance of the direct-insertion valve device easier. The limiting body covers the opening, and the installation part is connected to the limiting body. The connection via the installation part avoids the installation position being located at the opening of the ejector tube, thus reducing the impact on the ejection effect.

[0012] Preferably, the mounting portion extends along the insertion direction of the nozzle, and the mounting portion fits against the outer surface of the ejector tube.

[0013] In this design, by extending the mounting portion along the insertion direction of the nozzle and fitting snugly against the outer surface of the ejector tube, the connection between the mounting portion and the ejector tube is made easier and more secure. Furthermore, the mounting portion also serves a heat dissipation function, further enhancing the heat dissipation effect.

[0014] Preferably, there are two mounting parts, which are located at the top and bottom of the limiting body, respectively.

[0015] In this solution, by setting two mounting parts at the top and bottom of the limiting body respectively, the limiting plate can be connected to the ejector tube at the top and bottom respectively. The multiple mounting parts at different positions make the connection between the limiting plate and the ejector tube more stable and can further improve the heat dissipation effect.

[0016] Preferably, the mounting part has a mounting hole, and the outer surface of the ejector tube has a connection hole, and the mounting hole is connected to the connection hole by a fastener.

[0017] In this solution, the mounting hole is connected to the connection hole of the ejector tube by fasteners, which facilitates the connection and disassembly of the mounting part and the ejector tube.

[0018] Preferably, there are multiple nozzles and ejector tubes, and one limiting plate. The limiting plate has multiple first nozzle holes, and the multiple first nozzle holes, multiple nozzles, and multiple ejector tubes correspond one-to-one.

[0019] In this solution, when there are multiple nozzles and ejector tubes, the limiting plate can limit multiple nozzles, thereby increasing the heat dissipation effect of each nozzle.

[0020] Preferably, the opening is an open design.

[0021] In this design, the ejector tube has an open opening, with the end of the ejector tube near the nozzle completely open. A limiting plate is placed over the opening, which can significantly reduce the thickness of the limiting structure of the ejector tube and further improve the heat dissipation effect.

[0022] Preferably, the direct-insertion valve device further includes a damper and an elastic element. The elastic element acts on the side of the damper facing away from the limiting plate to make the damper fit against the limiting plate. The damper is provided with a second nozzle hole and a second damper hole. The nozzle is inserted into the second nozzle hole. The first damper hole and the second damper hole at least partially overlap.

[0023] In this design, the limiting plate has a first damper hole, and the direct-insertion valve device also includes a damper component that fits against the limiting plate. The damper component has a second damper hole, and the first and second damper holes at least partially overlap. When the nozzle injects gas, the induced air enters the injector tube from the overlapping portion of the first and second damper holes. By rotating the damper component, the overlapping area of ​​the first and second damper holes can be changed, thereby adjusting the injection effect. The direct-insertion valve device also includes an elastic component that acts on the side of the damper component facing away from the limiting plate, so that the damper component is subjected to elastic force and can fit against the limiting plate. Due to the elastic force, the limiting plate can also be more firmly covered on the opening of the injector tube.

[0024] This utility model provides a burner, which includes the aforementioned direct-insertion valve device.

[0025] The positive and progressive effects of this utility model are as follows:

[0026] This invention separates the limiting plate and the ejector tube, allowing for a thinner limiting plate (less than 2mm). Compared to the integrally formed ejector tube, the thinner limiting plate facilitates heat dissipation. Furthermore, the limiting plate includes extensions located on both sides of the limiting body, extending outwards to form the ejector tube, further enhancing heat dissipation. Because the limiting plate is thinner, the nozzle orifice can more easily extend into the inner part of the limiting plate's thickness direction, ensuring the orifice's periphery is not obstructed. The semi-open space of the nozzle orifice further facilitates heat dissipation. During use, the ejected air repeatedly cools the nozzle as it enters the ejector tube from the first damper hole, reducing nozzle temperature and extending the lifespan of the direct-insertion valve. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of a burner according to an embodiment of the present invention.

[0028] Figure 2 This is a three-dimensional structural diagram of a direct-insertion valve device according to an embodiment of the present invention.

[0029] Figure 3 This is a cross-sectional view of a direct-insertion valve device according to an embodiment of the present invention.

[0030] Figure 4 This is a three-dimensional structural diagram of a limiting piece according to an embodiment of the present invention.

[0031] Figure 5 This is a three-dimensional structural diagram of an ejector tube according to an embodiment of the present invention.

[0032] Figure 6 This is a three-dimensional structural diagram of a damper component according to an embodiment of the present invention.

[0033] Explanation of reference numerals in the attached figures:

[0034] Burner 100

[0035] Direct insertion valve device 110

[0036] Limiting plate 200

[0037] Limiting body 210

[0038] First nozzle orifice 211

[0039] First air vent hole 212

[0040] Extension 220

[0041] Installation Department 230

[0042] Mounting hole 231

[0043] ejector tube 300

[0044] Opening 310

[0045] Connection hole 320

[0046] Nozzle 400

[0047] Nozzle port 410

[0048] 500 damper components

[0049] Second nozzle orifice 510

[0050] Second air vent 520

[0051] Elastic component 600 Detailed Implementation

[0052] The present invention will be further described below by way of embodiments, but the present invention is not limited to the scope of the following embodiments.

[0053] like Figure 1 As shown, this utility model provides a burner 100, which includes a direct-insertion valve device 110.

[0054] like Figures 2-6 As shown, the direct-insertion valve device 110 includes an ejector tube 300 and a nozzle 400. One end of the ejector tube 300 has an opening 310. The direct-insertion valve device 110 also includes a limiting plate 200, which includes a limiting body 210 and an extension 220. The limiting body 210 has a first nozzle hole 211 and a first damper hole 212 for the nozzle 400. The limiting body 210 covers the opening 310, and the first damper hole 212 communicates with the opening 310. The extension 220 is located on the side of the limiting body 210 and extends outward from the ejector tube 300. The nozzle 400 is inserted into the first nozzle hole 211. The end of the nozzle 400 near the ejector tube 300 has a nozzle orifice 410. The nozzle orifice 410 extends into the inner side of the limiting plate 200 in the thickness direction and communicates with the opening 310. The thickness of the limiting plate 200 is less than 2 mm.

[0055] By designing the limiting plate 200 and the ejector tube 300 as separate components, the thickness of the limiting plate 200 can be made thinner, less than 2mm. Compared to the integrally formed ejector tube 300, the limiting plate 200 is thinner and dissipates heat more easily. The limiting plate 200 also includes an extension 220, located on both sides of the limiting body 210 and extending outwards from the ejector tube 300, further facilitating heat dissipation. Because the limiting plate 200 is thinner, the nozzle orifice 410 can more easily extend into the inner side of the limiting plate 200 in the thickness direction, ensuring that the periphery of the nozzle orifice 410 is not obstructed. The nozzle orifice 410 is in a semi-open space, further enhancing heat dissipation. During use, the ejected air repeatedly cools the nozzle 400 as it enters the ejector tube 300 through the first damper hole 212, thereby reducing the nozzle 400's temperature and extending the lifespan of the direct-insertion valve.

[0056] like Figure 2 As shown, there are two extensions 220. The two extensions 220 are located on both sides of the limiting body 210 and below the center of the nozzle 400, which makes it easier to dissipate heat and further improves the heat dissipation effect.

[0057] In other embodiments, the number of extensions 220 may be one or more. Those skilled in the art can select the appropriate number and placement of extensions 220 according to actual needs.

[0058] The limiting plate 200 also includes a mounting part 230. One end of the mounting part 230 is connected to the limiting body 210, and the other end of the mounting part 230 is detachably connected to the ejector tube 300, thereby facilitating the installation and removal of the limiting plate 200 and the ejector tube 300, and making it easier to assemble and maintain the direct-insertion valve device 110. The limiting body 210 covers the opening 310, and the mounting part 230 is connected to the limiting body 210. The connection via the mounting part 230 avoids the installation position being located at the opening 310 of the ejector tube 300, reducing the impact on the ejection effect.

[0059] The mounting portion 230 extends along the insertion direction of the nozzle 400 and fits against the outer surface of the ejector tube 300, thereby facilitating the connection between the mounting portion 230 and the ejector tube 300 and making the connection between the mounting portion 230 and the ejector tube 300 more secure. In addition, the mounting portion 230 also has a heat dissipation effect, further improving the heat dissipation efficiency.

[0060] There are two mounting parts 230, which are located at the top and bottom of the limiting body 210, respectively. This allows the limiting plate 200 to be connected to the ejector tube 300 at the top and bottom, respectively. The multiple mounting parts 230 at different positions make the connection between the limiting plate 200 and the ejector tube 300 more stable and can further improve the heat dissipation effect.

[0061] In other embodiments, those skilled in the art can select the appropriate number and location of the mounting parts 230 according to actual needs.

[0062] The mounting part 230 has a mounting hole 231, and the outer surface of the ejector tube 300 has a connection hole 320. The mounting hole 231 is connected to the connection hole 320 by a fastener, thereby facilitating the connection and disassembly of the mounting part 230 and the ejector tube 300.

[0063] There are multiple nozzles 400 and ejector tubes 300, and one limiting plate 200. The limiting plate 200 has multiple first nozzle holes 211 for the nozzles 400, and the multiple nozzles 400 and ejector tubes 300 correspond one-to-one. With multiple nozzles 400 and ejector tubes 300, the limiting plate 200 can limit the multiple nozzles 400, thereby increasing the heat dissipation effect of each nozzle 400.

[0064] like Figure 5As shown, the opening 310 of the ejector tube 300 is an open design, and the end of the ejector tube 300 near the nozzle 400 is completely open. The limiting plate 200 is placed on the opening 310, which can significantly reduce the thickness of the limiting structure of the ejector tube 300 and further improve the heat dissipation effect.

[0065] The direct-insertion valve device 110 also includes a damper 500 and an elastic member 600. The elastic member 600 acts on the side of the damper 500 facing away from the limiting plate 200 so that the damper 500 fits against the limiting plate 200. The damper 500 is provided with a second nozzle hole 510 and a second damper hole 520. The nozzle 400 is inserted into the second nozzle hole 510. The first damper hole 212 and the second damper hole 520 at least partially overlap.

[0066] When the nozzle 400 injects gas, the ejector air enters the ejector tube 300 from the overlapping portion of the first damper hole 212 and the second damper hole 520. By rotating the damper component 500, the overlapping area of ​​the first damper hole 212 and the second damper can be changed, thereby adjusting the ejection effect. The direct-insertion valve device 110 also includes an elastic element 600, which acts on the side of the damper component 500 facing away from the limiting plate 200, so that the damper component 500 is subjected to elastic force and can fit against the limiting plate 200. Due to the elastic force, the limiting plate 200 can also be more firmly covered on the opening 310 of the ejector tube 300.

[0067] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship of the device or component during normal use. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation at any time, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model in this respect.

[0068] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A direct-insertion valve device, the direct-insertion valve device comprising an ejector tube and a nozzle, wherein one end of the ejector tube has an opening, characterized in that, The direct-insertion valve device further includes a limiting plate, which includes a limiting body and an extension. The limiting body has a first nozzle hole and a first damper hole. The limiting body covers the opening, and the first damper hole is connected to the opening. The extension is located on the side of the limiting body and extends outward from the ejector tube. The nozzle is inserted into the first nozzle hole. The nozzle has a nozzle opening at one end near the ejector tube. The nozzle opening extends into the inside of the limiting plate in the thickness direction and is connected to the opening. The thickness of the limiting plate is less than 2 mm.

2. The direct-insertion valve device as described in claim 1, characterized in that, The number of extensions is two, and the two extensions are located on both sides of the limiting body and below the center of the nozzle.

3. The direct-insertion valve device as described in claim 1, characterized in that, The limiting plate also includes a mounting part, one end of which is connected to the limiting body, and the other end of which is detachably connected to the ejector tube.

4. The direct-insertion valve device as described in claim 3, characterized in that, The mounting portion extends along the insertion direction of the nozzle and fits against the outer surface of the ejector tube.

5. The direct-insertion valve device as described in claim 3, characterized in that, The number of mounting parts is two, and the two mounting parts are located at the top and bottom of the limiting body, respectively.

6. The direct-insertion valve device as described in claim 3, characterized in that, The mounting part has a mounting hole, and the outer surface of the ejector tube has a connection hole. The mounting hole is connected to the connection hole by a fastener.

7. The direct-insertion valve device as claimed in claim 1, characterized in that, The number of nozzles and ejector tubes is multiple, the number of limiting plates is one, and the limiting plate has multiple first nozzle holes, with each of the multiple first nozzle holes, multiple nozzles and multiple ejector tubes corresponding to one another.

8. The direct-insertion valve device as claimed in claim 1, characterized in that, The opening is an open design.

9. The direct-insertion valve device as claimed in claim 1, characterized in that, The direct-insertion valve device further includes a damper and an elastic element. The elastic element acts on the side of the damper facing away from the limiting plate to make the damper fit against the limiting plate. The damper is provided with a second nozzle hole and a second damper hole. The nozzle is inserted into the second nozzle hole. The first damper hole and the second damper hole at least partially overlap.

10. A burner, characterized in that, The burner includes a direct-injection valve device as described in any one of claims 1-9.

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